Coat To Bring Attic Insulation Up From 11 To R49

For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3.

Coat to bring attic insulation up from 11 to r49.

We want to bring it up to r49 but i have read that some suggest taking it to r60 to get more energy efficiency. Wall insulation whenever exterior siding is removed on an. Add insulation to attic. When the temperature is 30 degrees i have frost on my roof.

That tells me my insulation is adequate. I have about 6 inches of blown in insulation in my attic. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. If you don t have enough it may be an indication that your home is under insulated and may not be properly sealed.

For loose fill cellulose this translates to a total depth ranging from 8 inches. This may not be a question that can be answered without seeing the attic but would the extra few hundred dollar be worth the energy saving benefits. Looking across your attic if the insulation is level with or below the attic floor joists you probably need to add more insulation. Since the experts think i should have at least twice this amount of insulation what am i missing.

If you cannot see any of the floor joists because the insulation is well above them you probably have enough and adding more insulation may not be cost effective. Les oct 24 12 at 14 10. Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120. The easiest place to get a gauge on your home s current insulation condition is in the attic.

You need up to 19 inches or r 49 for efficiency. If there s still not enough room you can always add a layer of foam board or closed cell spray foam to the top of the roof topped by sheathing or. Pull down stair or ladder. We have about 3 of old insulation in our attic.

Where the irc 2009 recommendations for cold climate attic roof insulation have been adopted r49 is the minimum. Thus more insulation would have a very long payback time. Affix rigid foam insulation to the attic side of the hatch or door. As noted above there are lots of higher r value per inch alternatives to fiberglass.

In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended. I m also assuming that you won t have recessed lighting up there something to avoid in a heating climate. Existing 3 4 inches of insulation. Attic hatch or door.